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Synthesis and structure of pyrazolo[5,1-a]isoindol-8-ones from Aromatic Ortho Diesters

✍ Scribed by John P. Chupp; Gregory C. Leo; John M. Molyneaux


Book ID
112129979
Publisher
Journal of Heterocyclic Chemistry
Year
1991
Tongue
English
Weight
405 KB
Volume
28
Category
Article
ISSN
0022-152X

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Reaction of 5-amino-1-phenylpyrazole-4-c
✍ Yoshinori Tominaga; Noriko Yoshioka; Raymond N. Castle; Jiann-Kuan Luo; Tadashi 📂 Article 📅 1997 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 570 KB

## Abstract The reaction of 5‐amino‐1‐phenylpyrazole‐4‐carbonitriles 1a‐c with dimethyl acetylenedicarboxylate in the presence of potassium carbonate in dimethyl sulfoxide gave trimethyl 4,5,5a,8‐tetrahydro‐1‐phenyl‐4,8‐dioxo‐1__H__‐pyrazolo[3,4‐__e__]indolizine‐5,5a,6‐tricarboxylate derivatives 3a